This Opala Midi model pendant lamp was designed by Hans J. Wegner in 1975, and manufactured by Louis Poulsen, Denmark. The manufacturer's label can be found on the inside of the lamp shade. The lamp needs one E27 screwfit bulb, max. 100 Watt. The bulb will not be incuded in the delivery. Labeled by Maker,This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution, European Plug (up to 250V).The wiring of this item may be original and might need replacement, if not specified otherwise.